Autumnal equinox, definitive transition from summer to autumn.

Oseniny (read “as written”: “oseNEEna” – to be quite accurate, -y- should sound not as “are” but as -y- in Polish, however don't care if you don't know).

Another name of this day is Radogoshch (even do not try).

The Kalinov bridge. Nothing to do with Kalinka-Malinka probably known to you. In Russian tales that bridge means transition, transformation, battle against the evil – three-headed dragon for example. For now, we are not such great heroes, we just go to the autumn.